K2B-LV12J

Multi entry panel & Intercom (10key button)
Flush mount. Call & communication with house indoor unit,
Multi entry panel & Guard phone (K2B-TP12J or K2B-PM20J), 
Door open by access code
Can be used as House indoor unit & Multiple Intercom (Master to Master), Wall mount
Power:DC 24V (Power from common power supply)
Power consumption:Stand by 1.5W, Max : 4W
Communication System:Handset type
K2B Line -2wire (Non Polarity) Outdoor pannel (Non Polarity)Door opener (Non Polarity)
Max. wiring distance :CAT5 Max 500m